SITONG PACKAGING GROUP
BRC-Certified Woven Bag Factory · Since 1998

PP Woven Bags Manufacturer

Built to Carry Bulk. Built to Last.

As a trusted PP woven bag manufacturer since 1998, we produce high-quality polypropylene woven bags — also called woven polypropylene bags or PP woven sacks — for bulk packaging and industrial applications. Our woven bag factory supplies wholesalers, distributors and brands worldwide with custom PP woven bags, BOPP laminated sacks and OEM / ODM.

About SITONG
28 YEARS
Years manufacturing
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Production lines
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Export countries
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Annual output
0 k+ T
Factory Space
0 k m²

Integrated manufacturing

extrusion, weaving, printing, lamination and sewing under one roof.

BRC-certified

food-grade line with in-house lab & QC at every stage.

Custom & OEM/ODM

sizes, colours, printing, coatings and private label.

Multilingual support

EN / ES / FR / AR sales to serve buyers worldwide.

For 28 years, Sitong Packaging Group has been a trusted PP woven bag manufacturer and polypropylene woven bags manufacturer, delivering reliable polypropylene woven bags (PP woven sacks) to agriculture, food, construction, fertilizer, chemical and mining customers across global markets. We manage every stage of production in-house — from raw material selection and tape extrusion to circular weaving, lamination, printing, cutting, sewing and quality inspection — and supply both wholesale and private-label buyers.

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Manufacturing process

From Resin to Finished PP Woven Bag

Every step is controlled in our own factory, so strength, print quality and lead time stay under our roof.

1
Virgin PP Resin100% virgin polypropylene pellets for food-grade and high-strength bags; recycled-content options for industrial use.
2
Tape ExtrusionFlat-tape drawing with controlled denier for stable strength.
3
Circular WeavingCircular & flat looms; custom mesh and width.
4
PrintingGravure / offset, multi-colour, full-surface branding.
5
Lamination & CoatingBOPP lamination and PE coating for graphics, strength and barrier.
6
Cutting & SewingAutomated bottoms, valve, gusset, handles and loops.
7
QC & PackingTensile / leak / construction test, batch records, palletise & ship.
Raw Material Workshop
We use both virgin PP resin and high-quality recycled PP materials to meet different product specifications and customer requirements. Every batch of raw materials is carefully inspected, accurately blended, and tested before production to ensure consistent quality, strength, and performance. Our food grade PP woven bags are made of 100% pure polypropylene resin and meet applicable food packaging requirements.
Wire drawing workshop
Our tape extrusion workshop is equipped with advanced production lines that convert premium polypropylene resin into high-strength PP tapes. Precise temperature and process control ensure consistent tape quality, providing a solid foundation for durable and reliable PP woven bags.
Circular weaving workshop
Our circular weaving workshop is equipped with advanced looms that produce high-quality polypropylene woven fabric with excellent strength and uniformity. Precise machine control and continuous monitoring ensure consistent fabric quality, providing a reliable foundation for durable PP woven bags.
Printing workshop
Our printing workshop is equipped with advanced printing machines capable of producing clear, vibrant, and durable graphics on polypropylene woven bags. Whether you require simple one-color logos or complex multi-color designs, our experienced team ensures accurate color reproduction and consistent print quality throughout every production batch.
Sewing workshop
Advanced sewing machines and experienced workers ensure reliable seam quality for every PP woven bag.
Finished Goods Warehouse
All finished PP woven bags are carefully inspected, neatly stored, and well organized before shipment, ensuring product quality and timely delivery.
Packing and boxing
Finished PP woven bags are carefully packed, boxed, and prepared for shipment to ensure safe transportation and on-time delivery.
Production capacity

A Modern, Vertically Integrated Woven Bag Factory

A single plant where every production step is meticulously managed for consistent quality and high efficiency — see the scale for yourself.

Raw Material Workshop

We primarily use 100% virgin PP resin for food-grade and high-strength bags, with recycled-content options available for cost-sensitive industrial packaging. Every batch is inspected, accurately blended and tested before production for consistent strength and performance.

Quality control

Quality Checks at Every Production Stage

As a PP woven bag manufacturer, supplier and factory, we inspect from raw materials to finished bags — size, weight, strength, printing and stitching — before shipment.

BRCGS

Food-grade production standard

ISO 9001

Quality management system

ISO 14001

Environmental management

OHSMS

Occupational health & safety

Customization & OEM

Made to Your Specification

Every parameter below can be tailored to your product, filling line and handling method — standard or fully bespoke OEM / ODM.

Size & Capacity

5–200 kg load, 26–145 cm width, custom dimensions and gusset.

Fabric Spec

GSM 42–130, denier 400–1800D, weave mesh 9×9–14×14.

Printing

Gravure & offset, multi-colour, Pantone-matched, full-surface.

Lamination

BOPP film lamination for graphics and extra strength.

Coating & Liner

PE coating and inner liner for moisture / oxygen barrier.

UV & Finish

UV stabilisation, valve, handle and loop options.

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Working with us

From Inquiry to Delivery in 6 Steps

Here is how a typical order moves from your spec to our floor to your port — with artwork support and a no-resale guarantee on your design.

Industry Applications

PP Woven Bags for Every Industry

From farms to factories to retail shelves, our polypropylene woven bags are engineered for the load, barrier and print each application needs.

Polypropylene woven bags can be used in agriculture.

Agricultural

Grain · seed · potato

Building Material PP woven bags used for handling and transporting construction materials

Construction

Sand · cement · aggregate

Food grade polypropylene woven bags used for sugar packaging and storage

Food Grade

Flour · sugar · salt

PP woven bags for poultry feed packaging on a chicken farm

Feed & Fertilizer

Animal feed · pet · fertilizer

Chemical raw materials packaged in polypropylene woven bags for industrial applications

Chemical

Powders · resins · anti-static

Mineral PP woven bags loaded on a transport truck for bulk mineral delivery

Mining & Mineral

Ore · mineral powder · aggregate

Supermarket products packaged in durable polypropylene woven bags for retail use

Shopping & Retail

Reusable · branded · handles

Custom printed BOPP laminated PP woven bags used across food, agriculture, and retail industries

All Products

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Featured products

Popular PP Woven Bag Solutions

From standard woven sacks to BOPP laminated and custom polypropylene woven bags — discover the formats our customers order most.

PP woven potato bag
Breathable, anti-sprouting sacks for tubers.
PP woven bags for corn
High-strength sacks for maize and grain.
PP woven rice bag
Laminated, moisture-resistant rice packaging.
PP Woven Bags for Cat Food
Hermetic, printed bags for animal feed.
PP Woven Bags for Walnuts
Durable sacks for nuts and produce.
Colored-stripe PP woven bags
Visual-grade striped woven sacks.
Printed PP Woven Bag
BOPP laminated, full-colour branding.
BOPP Laminated Bag
Premium gloss print for retail shelf appeal.
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Specifications

PP Woven Bag Technical Parameters

Specification Range / Option
Capacity 5 – 200 kg
Width 26 – 145 cm
GSM 42 – 130
Denier 400 – 1800D
Weave 9×9 – 14×14 mesh
Print Offset & gravure, multi-colour, full-surface
Finish Lamination, PE coating, liner, UV stabilisation
Bottom Single/double fold & stitched (heat/ultrasonic)
Material Virgin PP (food-grade); recycled option for industrial
Certification BRC food-grade line; in-house lab testing
Output ~100 tonnes/day across 20 lines; 30,000 t/year
Global markets

Exported to 70+ Countries

Five regional clusters served worldwide — from Africa and the Americas to Asia and Europe.

Africa
Established distributor and agent network across the continent.

South America
Strong demand for food-grade and agricultural bags.

Central America
Growing distributor network across the region.

Asia
Regional supply for industrial and food customers.

Europe
Certified, documentation-ready exports to the EU.

FAQ

Frequently Asked Questions

Are you a direct PP woven bags manufacturer?

Yes. Sitong Packaging Group operates its own factory with 20 production lines and about 100 tonnes daily output of PP woven bags, FIBC, fabric, webbing and thread.

We use 100% virgin polypropylene only — no recycled content in the load-bearing fabric — to guarantee consistent strength and food-contact safety.

Our food-grade line is BRC-certified (BRCGS). We also hold ISO 9001 (quality), ISO 14001 (environment) and OHSMS (safety), and run an in-house laboratory for tensile, leak, construction and UV testing on every batch.

Yes. We manufacture to your drawing, sample or specification — custom size and capacity (5–200 kg), GSM, denier, mesh, gravure / offset printing, BOPP lamination, PE coating, liners, UV treatment, valves, handles and loops. OEM, ODM and private-label production are available under NDA with artwork support.

Around 100 tonnes per day across 20 production lines, with an annual output of roughly 30,000 tonnes of woven PP packaging.

Agriculture (grain, rice, flour, potato), food (sugar, salt, starch), retail & shopping, animal feed & fertilizer, construction (sand, cement), chemical and mining. We tailor fabric, coating and printing to each application.

Sitong Packaging Group has run its own woven bag factory since 1998 — 28+ years of manufacturing experience, 20 production lines and about 100 tonnes of daily output. We control every step in-house (extrusion, weaving, printing, lamination, sewing, QC), hold BRC, ISO 9001, ISO 14001 and OHSMS, and offer OEM / ODM with a no-resale guarantee.

We operate 20 production lines with roughly 100 tonnes per day and an annual output of about 30,000 tonnes of PP woven packaging. Standard orders typically ship within 20–40 days; exact lead time depends on customization and order volume.

Get a Quote in 24 Hours

Looking for a reliable PP woven bag manufacturer for your next packaging project? As an experienced woven bag supplier and woven bag factory, we provide high-quality polypropylene woven bags tailored to your specific requirements.
Whether you need standard woven bags or fully customized packaging, our team is ready to provide a fast and competitive quotation. Simply tell us your application, bag size, quantity, printing requirements, or any special specifications, and we'll recommend the most suitable solution.

Complete the inquiry form, and our team will contact you with a customized quotation as soon as possible.

Ask For A Quick Quote

We will contact you within 1 working day, please pay attention to the email with the suffix “@hcstgroup.com“.

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